Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome.

Detalhes bibliográficos
Autor(a) principal: HORN, M. M.
Data de Publicação: 2005
Outros Autores: MORAES, J. C. F., JAUME, C. M., EDELWEISS, M. I. A., ROSADO, A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1094438
Resumo: We used 550 Braford and 214 Brangus-Ibagé bulls to study the association between Y chromosome morphology and the evaluation of breeding-soundness, karyotyping and breeding records were used to assess Y chromosome morphology. In general, no direct association was detected between the individual type of Y chromosome and reproductive fitness as previously estimated through breeding soundness examination. The type of breeding strategy used to form the synthetic breeds was also analyzed. The Braford breed is about 3/8 Zebu (Bos taurus indicus) and 5/8 Hereford (Bos taurus taurus) but when the breeding strategy used 1/4 Zebu animals to produce Braford bulls which were 3/8 Zebu a greater percentage of the bulls had to be culled due to reproductive problems. Our study shows that certain interactions between genotypes can be detrimental to the reproductive efficiency of 3/8 Zebu animals and that breeding strategies avoiding or favoring certain genotypes can be used to reduce the percentage of bulls from synthetic breeds that are culled due to problems with semen quality.
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spelling Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome.Brangus-IbagéTouroSêmenWe used 550 Braford and 214 Brangus-Ibagé bulls to study the association between Y chromosome morphology and the evaluation of breeding-soundness, karyotyping and breeding records were used to assess Y chromosome morphology. In general, no direct association was detected between the individual type of Y chromosome and reproductive fitness as previously estimated through breeding soundness examination. The type of breeding strategy used to form the synthetic breeds was also analyzed. The Braford breed is about 3/8 Zebu (Bos taurus indicus) and 5/8 Hereford (Bos taurus taurus) but when the breeding strategy used 1/4 Zebu animals to produce Braford bulls which were 3/8 Zebu a greater percentage of the bulls had to be culled due to reproductive problems. Our study shows that certain interactions between genotypes can be detrimental to the reproductive efficiency of 3/8 Zebu animals and that breeding strategies avoiding or favoring certain genotypes can be used to reduce the percentage of bulls from synthetic breeds that are culled due to problems with semen quality.Marilise M. Horn, UFRGS; JOSE CARLOS FERRUGEM MORAES, CPPSUL; CARLOS MIGUEL JAUME EGGLETON, CPPSUL; Maria I. A. Edelweiss, UFRGS; Adriano Rosado.HORN, M. M.MORAES, J. C. F.JAUME, C. M.EDELWEISS, M. I. A.ROSADO, A.2018-08-24T00:54:29Z2018-08-24T00:54:29Z2018-08-2320052018-08-24T00:54:29Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleGenetics and Molecular Biology, v. 28, n. 2, p. 225-229, 2005.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1094438enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2018-08-24T00:54:35Zoai:www.alice.cnptia.embrapa.br:doc/1094438Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542018-08-24T00:54:35falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542018-08-24T00:54:35Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome.
title Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome.
spellingShingle Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome.
HORN, M. M.
Brangus-Ibagé
Touro
Sêmen
title_short Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome.
title_full Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome.
title_fullStr Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome.
title_full_unstemmed Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome.
title_sort Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome.
author HORN, M. M.
author_facet HORN, M. M.
MORAES, J. C. F.
JAUME, C. M.
EDELWEISS, M. I. A.
ROSADO, A.
author_role author
author2 MORAES, J. C. F.
JAUME, C. M.
EDELWEISS, M. I. A.
ROSADO, A.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Marilise M. Horn, UFRGS; JOSE CARLOS FERRUGEM MORAES, CPPSUL; CARLOS MIGUEL JAUME EGGLETON, CPPSUL; Maria I. A. Edelweiss, UFRGS; Adriano Rosado.
dc.contributor.author.fl_str_mv HORN, M. M.
MORAES, J. C. F.
JAUME, C. M.
EDELWEISS, M. I. A.
ROSADO, A.
dc.subject.por.fl_str_mv Brangus-Ibagé
Touro
Sêmen
topic Brangus-Ibagé
Touro
Sêmen
description We used 550 Braford and 214 Brangus-Ibagé bulls to study the association between Y chromosome morphology and the evaluation of breeding-soundness, karyotyping and breeding records were used to assess Y chromosome morphology. In general, no direct association was detected between the individual type of Y chromosome and reproductive fitness as previously estimated through breeding soundness examination. The type of breeding strategy used to form the synthetic breeds was also analyzed. The Braford breed is about 3/8 Zebu (Bos taurus indicus) and 5/8 Hereford (Bos taurus taurus) but when the breeding strategy used 1/4 Zebu animals to produce Braford bulls which were 3/8 Zebu a greater percentage of the bulls had to be culled due to reproductive problems. Our study shows that certain interactions between genotypes can be detrimental to the reproductive efficiency of 3/8 Zebu animals and that breeding strategies avoiding or favoring certain genotypes can be used to reduce the percentage of bulls from synthetic breeds that are culled due to problems with semen quality.
publishDate 2005
dc.date.none.fl_str_mv 2005
2018-08-24T00:54:29Z
2018-08-24T00:54:29Z
2018-08-23
2018-08-24T00:54:29Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Genetics and Molecular Biology, v. 28, n. 2, p. 225-229, 2005.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1094438
identifier_str_mv Genetics and Molecular Biology, v. 28, n. 2, p. 225-229, 2005.
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1094438
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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institution EMBRAPA
reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
collection Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv cg-riaa@embrapa.br
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